WO2022184080A1

WO2022184080A1 - Method and apparatus for node used for wireless communication

Info

Publication number: WO2022184080A1
Application number: PCT/CN2022/078733
Authority: WO
Inventors: 蒋琦; 张晓博
Original assignee: 上海朗帛通信技术有限公司
Priority date: 2021-03-03
Filing date: 2022-03-02
Publication date: 2022-09-09
Also published as: US20230397289A1; CN115022986A

Abstract

Disclosed in the present application are a method and apparatus for a node used for wireless communication. The method comprises: a node sustaining a first timer, and then sending a first message in response to any condition in a first condition set being satisfied, wherein one condition in the first condition set is the first timer being expired, and the first message is used for indicating at least one non-unicast identifier; and the node is in a first RRC state when sending the first message, the first RRC state being an RRC connected state, or the first RRC state being an RRC inactive state. In the present application, a trigger condition for a first message under multicast/groupcast and a corresponding sending method and apparatus are proposed, such that the current state of a node is sent to a network side to ensure that when an HARQ is used for a multicast/groupcast service, a terminal can enter in time or remain in an RRC connected state, thereby improving the transmission reliability and optimizing the system performance.

Description

A method and apparatus used in a node for wireless communication

technical field

The present application relates to a transmission method and apparatus in a wireless communication system, and in particular, to a design scheme and apparatus for uplink transmission in wireless communication.

Background technique

The NR Rel-17 standard has begun to discuss how to support the transmission of multicast (Multicast) and broadcast (Broadcast) services under the 5G architecture. In traditional LTE (Long-Term Evolution, Long Term Evolution) and LTE-A (Long-Term Evolution Advanced, Enhanced Long Term Evolution) systems, base stations use MBSFN (Multicast Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) and SC -PTM (Single-Cell Point-To-Multipoint, single-cell point-to-multipoint) mode supports terminals to receive multicast services. The multicast broadcast service based on the NR system will be designed more flexibly, and the uplink transmission of the UE (User Equipment, user equipment) will need to be redesigned.

SUMMARY OF THE INVENTION

Currently, the retransmission for PTM (Point-To-Multipoint, point-to-multipoint) transmission can be performed in either a unicast manner or a multicast manner. However, when the terminal needs to send uplink HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) feedback, and when the base station further retransmits multicast data to the terminal through unicast, the terminal needs to receive the relevant configuration first. information, it needs to be in the RRC connection state. The PTM transmission in Rel-17 obviously supports the terminal to receive PTM data in the RRC (Radio Resource Control, Radio Resource Control) idle (Idle) state and the RRC inactive state (Inactive), and then how to allow the terminal that performs PTM transmission to retain. It is a problem that needs to be solved to better support the performance of PTM in the RRC connected state (Connected). At the same time, the current PTM of Rel-17 already supports the terminal to receive unicast data and multicast multicast data in one frequency band at the same time. How to choose is also a problem that needs to be solved.

In view of the above problems, the present application discloses a solution. It should be noted that although the above description takes the communication scenario of PTM as an example, the present application is also applicable to other scenarios such as a unicast system, and achieves similar technical effects in PTM. In addition, using a unified solution for different scenarios (including but not limited to PTM) also helps reduce hardware complexity and cost. In the case of no conflict, the embodiments and features of the embodiments in any node of the present application may be applied in any other node, and vice versa. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily, provided that there is no conflict.

In view of the above problems, the present application discloses a method and apparatus for uplink transmission. It should be noted that, in the case of no conflict, the embodiments in the user equipment of the present application and the features in the embodiments may be applied to the base station, and vice versa. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily, provided that there is no conflict. Further, although the original intention of this application is for cellular networks, this application can also be applied to the Internet of Things and the Internet of Vehicles. Further, although the original intention of the present application is for multi-carrier communication, the present application can also be used for single-carrier communication. Further, although the original intention of this application is for multicast and multicast, this application can also be used for unicast communication. Further, although the original intention of this application is for terminal and base station scenarios, this application is also applicable to terminals and terminals, terminals and relays, non-terrestrial networks (NTN, Non-Terrestrial Networks), and between relays and base stations. communication scenarios, and achieve similar technical effects in terminal and base station scenarios. In addition, using a unified solution in different scenarios (including but not limited to communication scenarios between terminals and base stations) also helps to reduce hardware complexity and cost.

Further, in the case of no conflict, the embodiments in the first node device of the present application and the features in the embodiments may be applied to the second node device, and vice versa. In particular, for the explanation of the terms (Terminology), nouns, functions, and variables in this application (if not otherwise specified), reference may be made to the definitions in the 3GPP standard protocols TS (Technical Specification) 36 series, TS38 series, and TS37 series.

The present application discloses a method in a first node for wireless communication, comprising:

maintain the first timer;

Send the first message as a response that any condition in the first condition set is satisfied;

One condition in the first condition set is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; when the first node sends the first message is in a first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

As an embodiment, a technical feature of the above method is that the first timer is set, and when the first timer expires, the first node sends the first message to the base station to notify the base station of the The first node does not wish to be switched, ie remains in the first RRC state.

As an embodiment, another technical feature of the above method is that: under normal circumstances, when the first node has no unicast data to transmit, and when a certain time arrives, the base station will switch the first node to the RRC idle state or inactive state; however, the first message informs the base station that the first node still transmits multicast multicast data even if there is no unicast data transmission, and then wishes to stay in the RRC connected state to avoid the switching of the RRC state, so as to Gain the performance gains brought by unicast retransmission multicast multicast and the introduction of HARQ-ACK in multicast multicast.

receiving the first signaling and the second signaling;

receiving a first signal and a second signal;

Wherein, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the occupied by the second signal at least one of the time-domain resources or frequency-domain resources; the time-domain resources occupied by the first signal and the time-domain resources occupied by the second signal overlap; field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal is quasi-co-located with the target reference signal resource, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located is quasi-co-located with the target reference signal resource; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the CRC (Cyclic Redundancy Check) carried by the first signaling. , Cyclic Redundancy Check) RNTI (Radio Network Temporary Identifier, Wireless Network Temporary Identifier) and RNTI scrambling the CRC carried by the second signaling The target reference signal resource is determined from the two reference signal resources.

As an embodiment, a technical feature of the above method is: when the first signal and the second signal correspond to multicast multicast data and unicast data respectively, and the first signal indicated by the first signaling When the receiving beam used by the signal and the receiving beam used by the second signal indicated by the second signaling are different, the first node may determine the signal according to the priority or the priority of the first signal and the second signal. The transmission type of the first signal and the second signal is used to determine which receiving beam is used for receiving.

According to one aspect of the present application, including:

receive target data;

The behavior maintaining the first timer includes: in response to receiving the target data, starting or restarting the first timer; the target data includes DTCH (Dedicated Traffic Channel, dedicated traffic channel), DCCH (Dedicated Control Channel, dedicated control channel) or MAC (Medium Access Control, medium access control) SDU (Service Data Unit, service data unit) of CCCH (Common Control Channel, common control channel).

As an embodiment, a technical feature of the above method is that: the first timer is used to count the length of time that the first node does not receive unicast data, when the first node receives a unicast data , that is, when the target data is present, the first timer is re-timed.

According to one aspect of the present application, including:

send uplink data;

Wherein, the behavior maintaining the first timer includes: starting or restarting the first timer in response to sending the uplink data; the uplink data includes the MAC SDU from the DTCH or the DCCH.

As an embodiment, a technical feature of the above method is that: the first timer is used to time the length of time that the first node does not send unicast data, when the first node sends a unicast data, that is During the uplink data, the first timer is re-timed.

According to one aspect of the present application, including:

monitoring the second message in the first time window;

Determine whether to enter the RRC idle state according to whether the second message is detected;

The expiration of the first timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window; the behavior is based on whether the The second message determining whether to enter the RRC idle state includes: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

As an embodiment, a technical feature of the above method is that: as a response to the first message, the base station explicitly tells the first node not to enter the RRC idle state through the second message.

According to one aspect of the present application, including:

Switch from the first BWP (Bandwidth Part, bandwidth part) to the second BWP;

Wherein, the behavior maintaining the first timer includes: starting or maintaining the first timer in response to the behavior switching from the first BWP to the second BWP.

As an embodiment, a technical feature of the above method is that: when the first BWP is configured for multicast multicast service transmission, and the second BWP is configured for unicast service transmission, the transmission from the first BWP occurs. When a BWP switches to the behavior of the second BWP, the first node starts the first timer; that is, when the first node leaves the multicast BWP for more than a certain time, the first node The first message needs to be sent to inform the base station.

According to one aspect of the present application, including:

monitoring the third message in the first time window;

determining whether to camp on the second BWP according to whether the third message is detected;

The expiration of the first timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window; the behavior is based on whether the The third message determining whether to camp on the second BWP includes not camping on the second BWP when the third message is detected, and camping on the second BWP when the third message is not detected.

As an embodiment, a technical feature of the above method is: when the first node leaves the first BWP, that is, when the time from leaving the BWP configured with multicast multicast transmission is too long, the first message is sent, and Start to detect the third message; the third message is used as the feedback of the base station to the first message, indicating that the first node does not reside in the second BWP, and switches to a server that supports multicast services BWP.

According to an aspect of the present application, the frequency domain resource occupied by the first signal is a first set of subcarriers, the frequency domain resource occupied by the second signal is a second set of subcarriers, and the first set of subcarriers and the second set of subcarriers belong to the target BWP, and the first set of subcarriers and the second set of subcarriers are orthogonal in the frequency domain.

As an embodiment, a technical feature of the above method is that: the first signal and the second signal are FDM (Frequency Division Multiplexing, frequency division multiplexing).

According to an aspect of the present application, both the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a target control resource set, and the target control resource set is associated with the first A set of reference signal resources of a type and a set of reference signal resources of a second type; the first field included in the first signaling is used to indicate the first reference signal resource from the set of reference signal resources of the first type ; the second field included in the second signaling is used to indicate the second reference signal resource from the second type of reference signal resource set.

As an embodiment, a technical feature of the above method is: when the first signaling and the second signaling belong to two different CORESETs (Control Resource Sets, control resource sets), the above two different CORESETs CORESET is associated with two different TCI (Transmission Configuration Indication) tables respectively to correspond to the indication of the receiving beam of the PDSCH of multicast multicast and the PDSCH of unicast (Physical Downlink Shared Channel, Physical Downlink Shared Channel) indication of the receive beam.

According to an aspect of the present application, the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively. The frequency domain resources occupied by the control resource set and the frequency domain resources occupied by the second control resource set overlap; the search space set associated with the first control resource set is associated with the first identifier, and the The search space set associated with the second control resource set is not associated with the first identifier; the demodulation reference signal of the control signaling in the second control resource set is the same as the control signal in the first control resource set The demodulation reference signals for signaling are quasi-co-located.

As an embodiment, a technical feature of the above method is: when the search space set used for multicast multicast scheduling signaling transmission and the search space set used for unicast scheduling signaling transmission overlap The receive beam used by the set of search spaces for scheduling signaling transmission follows the receive beam used by the set of search spaces used for multicast multicast scheduling signaling transmission.

The present application discloses a method in a second node for wireless communication, comprising:

receive the first message;

The sender of the first message includes a first node, the first node maintains the first timer, and as a response that any condition in the first condition set is satisfied, the first node sends the first message; one condition in the first set of conditions is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; when the first node sends the first message is in a first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

sending the first signaling and the second signaling;

sending a first signal and a second signal;

Wherein, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the occupied by the second signal at least one of the time-domain resources or frequency-domain resources; the time-domain resources occupied by the first signal and the time-domain resources occupied by the second signal overlap; field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal is quasi-co-located with the target reference signal resource, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located is quasi-co-located with the target reference signal resource; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the RNTI and the CRC carried by the first signaling. The RNTI scrambling the CRC carried by the second signaling is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

According to one aspect of the present application, including:

send target data;

wherein, the first node receives the target data; the behavior of maintaining the first timer includes: in response to receiving the target data, the first node starts or restarts the first timer; the Target data includes MAC SDUs from DTCH, DCCH or CCCH.

According to one aspect of the present application, including:

receive uplink data;

Wherein, the first node sends the uplink data; the behavior of maintaining the first timer includes: in response to sending the uplink data, the first node starts or restarts the first timer; the Uplink data includes MAC SDUs from DTCH or DCCH.

According to one aspect of the present application, including:

sending the second message in the first time window;

The first node determines whether to enter the RRC idle state according to whether the second message is detected; the expiration of the first timer is used to trigger the first node to send the first message; the first The sending time of a message is used to determine the first time window; the act of determining whether to enter the RRC idle state according to whether the second message is detected includes: when the first node detects the second message The RRC idle state is not entered, and the RRC idle state is entered when the first node does not detect the second message.

According to one aspect of the present application, including:

determining that the first node switches from the first BWP to the second BWP;

Wherein, the behavior of maintaining the first timer includes: in response to the behavior switching from the first BWP to the second BWP, the first node starts or maintains the first timer.

According to one aspect of the present application, including:

sending a third message in the first time window;

Wherein, the first node determines whether to camp on the second BWP according to whether the third message is detected; the expiration of the first timer is used to trigger the first node to send the first message; The sending time of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP according to whether the third message is detected includes: when the third message is detected when the first node does not reside on the second BWP, and when the third message is not detected, the first node resides on the second BWP.

The present application discloses a first node for wireless communication, comprising:

a first transceiver, maintaining a first timer;

The second transceiver, in response to any condition in the first condition set being satisfied, transmits the first message;

a first transceiver, receiving the first signaling and the second signaling;

a second transceiver that receives the first signal and the second signal;

The present application discloses a second node for wireless communication, comprising:

a third transceiver, receiving the first message;

a third transceiver, transmitting the first signaling and the second signaling; and transmitting the first signal and the second signal;

As an embodiment, compared with the traditional solution, the present application has the following advantages:

-. Set the first timer, when the first timer expires, the first node sends the first message to the base station to notify the base station that the first node does not wish to be switched, that is, still remain in the first RRC state;

-. Normally, when the first node has no unicast data to transmit, and a certain time is reached, the base station will switch the first node to the RRC idle state or inactive state; in this case, the first node A message informs the base station that the first node still transmits multicast multicast data even if there is no unicast data transmission, and then wishes to stay in the RRC connected state to avoid switching of the RRC state, so as to obtain the multicast group through unicast retransmission and the performance gain brought by the introduction of HARQ-ACK in multicast multicast;

-. When the first signal and the second signal correspond to multicast data and unicast data respectively, and the receiving beam used by the first signal indicated by the first signaling and the second signal When the receiving beams used by the second signal indicated by the signaling are different, the first node may use the priority of the first signal and the second signal or the priority of the first signal and the second signal according to the priority of the first signal and the second signal. Transmission type, which determines which receive beam is used for reception;

- The first timer is used to time the length of time that the first node does not send unicast data, and when the first node sends a unicast data, that is, the uplink data, re-time the first node a timer;

- When the first BWP is configured for multicast multicast service transmission and the second BWP is configured for unicast service transmission, the behavior of switching from the first BWP to the second BWP occurs , the first node starts the first timer; that is, when the first node leaves the multicast BWP for more than a certain time, the first node needs to send the first message to inform the base station.

Description of drawings

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 shows a process flow diagram of a first node according to an embodiment of the present application;

Fig. 2 shows the processing flow chart of the first node according to another embodiment of the present application;

3 shows a schematic diagram of a network architecture according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of an embodiment of a radio protocol architecture of the user plane and the control plane according to an embodiment of the present application;

5 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

FIG. 6 shows a flowchart of a first message according to an embodiment of the present application;

FIG. 7 shows a flowchart of the first signaling and the second signaling according to an embodiment of the present application;

Figure 8 shows a flow chart of target data according to an embodiment of the present application;

9 shows a flowchart of uplink data according to an embodiment of the present application;

FIG. 10 shows a flowchart of a second message according to an embodiment of the present application;

11 shows a flowchart of switching from a first BWP to a second BWP according to an embodiment of the present application;

FIG. 12 shows a flowchart of a third message according to an embodiment of the present application;

13 shows a schematic diagram of a first time window according to an embodiment of the present application;

Figure 14 shows a schematic diagram of a first signal and a second signal according to an embodiment of the present application;

15 shows a schematic diagram of a first type of reference signal resource set and a second type of reference signal resource set according to an embodiment of the present application;

FIG. 16 shows a schematic diagram of a first control resource set and a second control resource set according to an embodiment of the present application;

FIG. 17 shows a structural block diagram of a processing apparatus in a first node device according to an embodiment of the present application;

FIG. 18 shows a structural block diagram of a processing apparatus in a first node device according to another embodiment of the present application;

FIG. 19 shows a structural block diagram of a processing apparatus in a second node device according to an embodiment of the present application;

FIG. 20 shows a structural block diagram of a processing apparatus in a second node device according to an embodiment of the present application.

Detailed ways

The technical solutions of the present application will be described in further detail below with reference to the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other arbitrarily without conflict.

Example 1

Embodiment 1 illustrates a processing flow chart of the first node, as shown in FIG. 1 . In 100 shown in Figure 1, each block represents a step. In Embodiment 1, the first node in the present application maintains the first timer in step 101; in step 102, as a response that any condition in the first condition set is satisfied, a first message is sent.

In Embodiment 1, one condition in the first condition set is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first node is sending the first A message is in the first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

As an embodiment, the first timer is dataInactivityTimer.

As an embodiment, the first timer is t-PollRetransmit.

As an embodiment, the unit of the first timer is milliseconds.

As an example, the above-mentioned operation of the phrase "maintaining the first timer" includes: incrementing the value of the timer by 1 every time unit before expiration.

As an example, the duration of the time unit in this application is 1 millisecond.

As an example, the duration of the time unit in this application is no more than 1 millisecond.

As an embodiment, the duration of the time unit in this application is 1 time slot (Slot).

As an embodiment, one condition in the first condition set is that the buffer for buffering the MAC SDU is empty.

As an embodiment, one condition in the first condition set is that the cache used to cache the target data is empty.

As a sub-embodiment of this embodiment, the target data includes MAC SDUs from DTCH, DCCH and CCCH.

As a sub-embodiment of this embodiment, the target data does not include MAC SDUs from the MTCH.

As a sub-embodiment of this embodiment, the target data does not include MAC SDUs from MCCH (Multicast Control Channel, Multicast Control Channel).

As a sub-embodiment of this embodiment, the target data does not include MAC SDUs from SC-MTCH (Single Carrier-Multicast Traffic Channel, single carrier multicast traffic channel).

As a sub-embodiment of this embodiment, the target data does not include the MAC SDU from SC-MCCH (Single Carrier-Multicast Control Channel, single carrier multicast control channel).

As an embodiment, the first message includes RRC signaling.

As an embodiment, the first message includes a MAC CE.

As an embodiment, the physical layer channel carrying the first message includes PUCCH (Physical Uplink Control Channel, physical uplink control channel).

As an embodiment, the physical layer channel carrying the first message includes PUSCH (Physical Uplink Shared Channel, physical uplink shared channel).

As one embodiment, the first message is sent on a unicast channel.

As an embodiment, the unicast channel in this application includes a transport channel.

As an embodiment, the transmission channel in this application is UL-SCH (Uplink Shared Channel, uplink shared channel).

As an embodiment, the unicast channel in this application includes a logical channel.

As an embodiment, the logical channel in this application is DTCH.

As an example, non-unicast in this application includes multicast.

As an embodiment, non-unicast in this application includes multicast.

As an embodiment, non-unicast in this application includes multicast multicast.

As an example, non-unicast in this application includes broadcast.

As an embodiment, the non-unicast identifier is a session identifier (sessionID).

As an embodiment, the non-unicast identifier is a logical channel identifier (LCID, Logical Channel Identifier) of a non-unicast channel.

As an embodiment, the non-unicast identity is a TMGI (Temporary Mobile Group Identity, temporary mobile group identity).

As an embodiment, the non-unicast identifier is an RNTI.

As an embodiment, the non-unicast identifier is an RNTI other than a C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identifier).

As an embodiment, the non-unicast identifier is a G-RNTI (Group Radio Network Temporary Identifier, group wireless network temporary identifier).

As an embodiment, the non-unicast identifier is an MBMS (Multimedia Broadcast/Multicast Service, Multimedia Broadcast Multicast Service) interest indication (MbmsInterestIndication).

As an embodiment, the non-unicast identifier is GC-RNTI (Group Common Radio Network Temporary Identifier, group public wireless network temporary identifier).

As an embodiment, the non-unicast identifier is SC-RNTI (Single Carrier Radio Network Temporary Identifier, single carrier wireless network temporary identifier).

As an embodiment, the non-unicast identifier is SC-PTM-RNTI (Single Carrier Point to Multipoint Radio Network Temporary Identifier, single carrier point-to-multipoint wireless network temporary identifier).

As an embodiment, the non-unicast identifier is SC-SFN-RNTI (Single Carrier Single Frequency Network Radio Network Temporary Identifier, single carrier single frequency network wireless network temporary identifier).

As an embodiment, the first RRC state is an RRC connected (Connected) state.

As an embodiment, the first RRC state is an RRC inactive (Inactive) state.

As an embodiment, the phrase "the first RRC state is an RRC inactive state" includes that the first node can send or receive unicast data.

As an embodiment, the sending of the first message enables the receiver of the first message to obtain the current communication requirement of the first node, and then can more accurately make a scheduling decision that meets the requirement of the first node , so the technical problem aimed at by this application can be solved.

As an embodiment, how the first message is utilized by the recipient of the first message is implementation-dependent by the recipient of the first message.

As one embodiment, the first message is used by the recipient of the first message to determine whether to switch the first node from the first RRC state to a second RRC state, the second RRC state being A candidate state in a candidate state set, the candidate state set includes at least the RRC idle state.

As a sub-embodiment of this embodiment, the first RRC state is an RRC connected state, and the candidate state set includes an RRC inactive state.

As a sub-embodiment of this embodiment, the first RRC state is an RRC inactive state, and the candidate state set includes an RRC connected state.

As a sub-embodiment of this embodiment, the recipient of the first message detects the first message, the recipient of the first message maintains the first node in the first RRC state .

As a sub-embodiment of this embodiment, the recipient of the first message does not detect the first message, and the recipient of the first message switches the first node to the second RRC state.

As an embodiment, the first information is used to indicate that the first node is receiving non-unicast traffic.

As an embodiment, the first information is used to indicate that the first node is interested in non-unicast services.

As an embodiment, the first information is used to indicate that the first node wishes to remain in the first RRC state.

As an embodiment, the non-unicast service in this application includes multicast service.

As an embodiment, the non-unicast service in this application includes a multicast service.

As an embodiment, the non-unicast service in this application includes a multicast multicast service.

As an embodiment, the non-unicast service in this application includes broadcast service.

Example 2

Embodiment 2 illustrates another processing flow chart of the first node, as shown in FIG. 2 . In 110 shown in Figure 2, each block represents a step. In Embodiment 2, the first node in this application receives the first signaling and the second signaling in step 111 ; and receives the first signal and the second signal in step 112 .

In Embodiment 2, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the second at least one of the time domain resources or frequency domain resources occupied by the signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap; the first signaling includes a first field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first The reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal and the target reference signal resource are quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal The modulation reference signal and the target reference signal resource are quasi-co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the CRC carried by the first signaling. The RNTI and the RNTI that scrambles the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the first signaling is DCI (Downlink Control Information, downlink control information).

As an embodiment, the second signaling is DCI.

As an embodiment, the first signaling is used to schedule the first signal.

As an embodiment, the second signaling is used to schedule the second signal.

As an embodiment, the physical layer channel carrying the first signaling includes PDCCH (Physical Downlink Control Channel, physical downlink control channel).

As an embodiment, the physical layer channel carrying the first signal includes PDSCH (Physical Downlink Shared Channel, physical downlink shared channel).

As an embodiment, the physical layer channel carrying the second signaling includes PDCCH.

As an embodiment, the physical layer channel carrying the second signal includes PDSCH.

As an embodiment, the first signal is a wireless signal.

As an embodiment, the first signal is a baseband signal.

As an embodiment, the second signal is a wireless signal.

As an embodiment, the second signal is a baseband signal.

As an embodiment, the first signaling is used to indicate time domain resources occupied by the first signal.

As an embodiment, the first signaling is used to indicate frequency domain resources occupied by the first signal.

As an embodiment, the second signaling is used to indicate time domain resources occupied by the second signal.

As an embodiment, the second signaling is used to indicate frequency domain resources occupied by the second signal.

As an embodiment, the meaning of the above sentence "the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap" includes: the first signal and the second signal occupy the same time slot.

As an embodiment, the meaning of the above sentence "the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap" includes: at least one multi-carrier symbol simultaneously belongs to the first signal Time domain resources occupied by a signal and time domain resources occupied by the second signal.

As an embodiment, the multi-carrier symbols described in this application are OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing technology) symbols.

As an embodiment, the multi-carrier symbols in this application are CP-OFDM (Cyclic Prefix-OFDM) symbols.

As an embodiment, the multi-carrier symbols in this application are DFT-S-OFDM (Discrete Fourier Transform Spreading OFDM) symbols.

As an embodiment, the multi-carrier symbols in this application are SC-FDMA (Single-Carrier Frequency Division Multiple Access, single-carrier frequency division multiplexing access) symbols.

As an embodiment, the first field included in the first signaling is a TCI (Transmission Configuration Indication) field in the DCI.

As an embodiment, the second domain included in the second signaling is a TCI domain in the DCI.

As an embodiment, the first reference signal resource is associated with one TCI-State.

As an embodiment, the first reference signal resource includes CSI-RS (Channel State Information-Reference Signal) resource or SSB (Synchronization Signal/physical broadcast channel Block, synchronization signal/physical broadcast channel block) at least one of them.

As an embodiment, the second reference signal resource is associated with one TCI-State.

As an embodiment, the second reference signal resource includes at least one of CSI-RS resource or SSB.

As an embodiment, the first reference signal resource indicated by the first field included in the first signaling is associated with at least one of a CSI-RS resource identifier (Identity) or an SSB index (Index). one.

As an embodiment, the first reference signal resource indicated by the second field included in the second signaling is associated with at least one of a CSI-RS resource identifier (Identity) or an SSB index (Index). one.

As an embodiment, the first reference signal resource and the second reference signal resource are respectively associated with different TCI-States.

As an embodiment, the first reference signal resource and the second reference signal resource are respectively associated with different TCI-StateIds.

As an embodiment, the first reference signal resource and the second reference signal resource are respectively associated with different CSI-RS resources.

As an embodiment, the first reference signal resource and the second reference signal resource are respectively associated with different SSB indices.

As an example, the above sentence "The priority of the first signal and the priority of the second signal are used to determine the target reference from the first reference signal resource and the second reference signal resource The meaning of "signal resource" includes: the priority of the first signal is higher than the priority of the second signal, the target reference signal is the first reference signal; or the priority of the first signal is higher than the priority of the second signal. The priority is not higher than the priority of the second signal, and the target reference signal is the second reference signal.

As an example, the above sentence "The priority of the first signal and the priority of the second signal are used to determine the target reference from the first reference signal resource and the second reference signal resource The meaning of "signal resource" includes: the priority of the first signal is not lower than the priority of the second signal, the target reference signal is the first reference signal; or the first signal The priority of is lower than the priority of the second signal, and the target reference signal is the second reference signal.

As an embodiment, the above sentence "The RNTI that scrambles the CRC carried by the first signaling and the RNTI that scrambles the CRC carried by the second signaling are used to convert the "Determining the target reference signal resource in the second reference signal resource" means that the RNTI that scrambles the CRC carried in the first signaling is an RNTI other than the C-RNTI, and scrambles the second signal. Let the RNTI of the carried CRC be the C-RNTI, and the target reference signal is the first reference signal; or the RNTI of the CRC carried by the scrambled first signaling and the data of the scrambled second signaling. The RNTIs of the carried CRC are all C-RNTIs, and the target reference signal is the second reference signal.

As a sub-embodiment of this embodiment, the sending moment of the second signaling is later than the sending moment of the first signaling.

As an embodiment, the first signaling and the second signaling occupy the same time slot.

As an embodiment, the first signal and the second signal occupy the same time slot.

As an embodiment, the first signaling is a downlink grant (DL Grant).

As an embodiment, the second signaling is a downlink grant.

Example 3

Embodiment 3 illustrates a schematic diagram of a network architecture, as shown in FIG. 3 .

FIG. 3 illustrates a diagram of a network architecture 200 of a 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) system. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 by some other suitable term. The EPS 200 may include a UE (User Equipment, User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core, Evolved Packet Core)/5G-CN (5G-Core Network, 5G Core) network) 210, HSS (Home Subscriber Server, home subscriber server) 220 and Internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services or other cellular networks. The NG-RAN includes NR Node Bs (gNBs) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201 . gNBs 203 may connect to other gNBs 204 via an Xn interface (eg, backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP, or some other suitable terminology. gNB 203 provides UE 201 with an access point to EPC/5G-CN 210. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices , video devices, digital audio players (eg, MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term. The gNB203 is connected to the EPC/5G-CN 210 through the S1/NG interface. EPC/5G-CN 210 includes MME (Mobility Management Entity, Mobility Management Entity)/AMF (Authentication Management Field, Authentication Management Field)/UPF (User Plane Function, User Plane Function) 211, other MME/AMF/UPF214, S-GW (Service Gateway, service gateway) 212 and P-GW (Packet Date Network Gateway, packet data network gateway) 213 . The MME/AMF/UPF 211 is the control node that handles signaling between the UE 201 and the EPC/5G-CN 210 . In general, MME/AMF/UPF 211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through S-GW212, which is itself connected to P-GW213. The P-GW 213 provides UE IP address allocation and other functions. The P-GW 213 is connected to the Internet service 230 . The Internet service 230 includes the Internet Protocol service corresponding to the operator, and may specifically include the Internet, an intranet, an IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the UE 201 corresponds to the first node in this application.

As an embodiment, the UE 201 is a terminal capable of supporting multicast services.

As an embodiment, the UE 201 supports the transmission of PTM.

As an embodiment, the UE 201 supports SC-PTM transmission.

As an embodiment, the UE 201 supports the transmission of multicast multicast services through a unicast channel.

As an embodiment, the UE 201 supports retransmission of multicast multicast data through a unicast channel.

As an embodiment, the gNB 203 corresponds to the second node in this application.

As an embodiment, the gNB 203 is a base station capable of supporting multicast services.

As an embodiment, the gNB 203 supports the transmission of PTM.

As an embodiment, the gNB 203 supports SC-PTM transmission.

Example 4

Embodiment 4 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 4 . Figure 4 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, showing three layers for a first communication node device (UE, gNB or RSU in V2X) and a second Radio protocol architecture of the control plane 300 between communication node devices (gNB, UE or RSU in V2X): layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY 301 . Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first communication node device and the second communication node device through PHY 301 . L2 layer 305 includes MAC (Medium Access Control, Media Access Control) sublayer 302, RLC (Radio Link Control, Radio Link Layer Control Protocol) sublayer 303 and PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) sublayer 304, the sublayers are terminated at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides for providing security by encrypting data packets, and the PDCP sublayer 304 also provides handoff support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (eg, resource blocks) in a cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resouce Control, Radio Resource Control) sublayer 306 in the layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and using the communication between the second communication node device and the first communication node device. The RRC signaling between them is used to configure the lower layers. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 For the physical layer 351, L2 The PDCP sublayer 354 in the layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are substantially the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 is also Provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol, Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for the mapping between the QoS flow and the data radio bearer (DRB, Data Radio Bearer). , to support business diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (eg, IP layer) terminating at the P-GW on the network side and another terminating in a connection Application layer at one end (eg, remote UE, server, etc.).

As an embodiment, the radio protocol architecture in FIG. 4 is applicable to the first node in this application.

As an embodiment, the radio protocol architecture in FIG. 4 is applicable to the second node in this application.

As an embodiment, the PDCP 304 of the second communication node device is used to generate the schedule of the first communication node device.

As an embodiment, the PDCP 354 of the second communication node device is used to generate the schedule of the first communication node device.

As an embodiment, the first timer in this application is located at the MAC layer.

As an embodiment, the first timer in this application is located at the RLC layer.

As an embodiment, the first timer in this application is located at the RRC layer.

As an embodiment, the first message in this application is generated by the PHY 301 or the PHY 351 .

As an embodiment, the first message in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the first message in this application is generated in the RRC 306 .

As an embodiment, the first signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the first signaling in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the second signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the second signaling in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the first signal in this application is generated in the PHY 301 or the PHY 351 .

As an embodiment, the first signal in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the first signal in this application is generated in the RRC 306 .

As an embodiment, the second signal in the present application is generated in the PHY 301 or the PHY 351 .

As an embodiment, the second signal in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the second signal in this application is generated in the RRC 306 .

As an embodiment, the target data in this application is generated in the PHY301 or PHY351.

As an embodiment, the target data in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the target data in this application is generated in the RRC 306 .

As an embodiment, the uplink data in this application is generated in the PHY 301 or the PHY 351 .

As an embodiment, the uplink data in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the uplink data in this application is generated in the RRC 306 .

As an embodiment, the second message in this application is generated by the PHY 301 or the PHY 351 .

As an embodiment, the second message in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the second message in this application is generated in the RRC 306.

As an embodiment, the third message in this application is generated by the PHY 301 or the PHY 351 .

As an embodiment, the third message in this application is generated in the MAC 302 or the MAC 352.

As an embodiment, the third message in this application is generated in the RRC 306 .

As an embodiment, the first node is a terminal.

As an embodiment, the second node is a terminal.

As an embodiment, the second node is an RSU (Road Side Unit, roadside unit).

As an embodiment, the second node is a Grouphead.

As an embodiment, the second node is a TRP (Transmitter Receiver Point, sending and receiving point).

As an embodiment, the second node is a cell (Cell).

As an embodiment, the second node is an eNB.

As an embodiment, the second node is a base station.

As an embodiment, the second node is used to manage multiple base stations.

As an embodiment, the second node is a node for managing multiple cells.

As an embodiment, the second node is used to manage multiple TRPs (Transmit Receive Points).

As an embodiment, the second node is an MCE (Multicell, Multicast Coordination Entity, multi-cell/multicast authoring entity).

Example 5

Embodiment 5 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in FIG. 5 . FIG. 5 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

First communication device 450 includes controller/processor 459, memory 460, data source 467, transmit processor 468, receive processor 456, multiple antenna transmit processor 457, multiple antenna receive processor 458, transmitter/receiver 454 and antenna 452.

The second communication device 410 includes a controller/processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter/receiver 418 and an antenna 420 .

In the transmission from the second communication device 410 to the first communication device 450 , at the second communication device 410 upper layer data packets from the core network are provided to the controller/processor 475 . The controller/processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels multiplexing, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the first communication device 450. Transmit processor 416 and multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (ie, the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and based on various modulation schemes (eg, binary phase shift keying (BPSK), quadrature phase shift Mapping of signal clusters for M-Phase Shift Keying (M-PSK), M-Quadrature Amplitude Modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (eg, pilots) in the time and/or frequency domains, and then uses an inverse fast Fourier transform (IFFT) to generate A physical channel that carries a multi-carrier symbol stream in the time domain. Then the multi-antenna transmit processor 471 performs transmit analog precoding/beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, which is then provided to a different antenna 420.

In transmissions from the second communication device 410 to the first communication device 450 , at the first communication device 450 , each receiver 454 receives a signal through its respective antenna 452 . Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456 . The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454 . The receive processor 456 uses a Fast Fourier Transform (FFT) to convert the received analog precoding/beamforming operation of the baseband multicarrier symbol stream from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered by the multi-antenna receive processor 458 after multi-antenna detection Any spatial stream to which the first communication device 450 is the destination. The symbols on each spatial stream are demodulated and recovered in receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459 . The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , Control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410 , at the first communication device 450 , a data source 467 is used to provide upper layer data packets to the controller/processor 459 . Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements the header based on the radio resource allocation Compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels, implement L2 layer functions for user plane and control plane. The controller/processor 459 is also responsible for retransmission of lost packets, and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping, channel coding processing, multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, followed by transmission The processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which undergoes analog precoding/beamforming operations in the multi-antenna transmit processor 457 and then is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, which is then provided to the antenna 452 .

In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to that in the transmission from the second communication device 410 to the first communication device 450 The receive function at the first communication device 450 described in the transmission of . Each receiver 418 receives radio frequency signals through its respective antenna 420 , converts the received radio frequency signals to baseband signals, and provides the baseband signals to multi-antenna receive processor 472 and receive processor 470 . The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. Controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communication device 450 to the second communication device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , Control signal processing to recover upper layer data packets from UE450. Upper layer packets from controller/processor 475 may be provided to the core network.

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with all used together with the at least one processor. The first communication device 450 means at least: first maintain a first timer; then send a first message as a response that any condition in the first condition set is satisfied; one condition in the first condition set is all the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first node is in the first RRC state when sending the first message; the first RRC state is RRC Connected state, or the first RRC state is an RRC inactive state.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions, the program of computer-readable instructions, when executed by at least one processor, produces actions, the actions comprising: first maintaining a first timer; then a first message is sent in response to any condition in a first set of conditions being met; one of the conditions in the first set of conditions is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first node is in the first RRC state when sending the first message; the first RRC state is the RRC connected state, or the first RRC state is RRC inactive state.

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with all used together with the at least one processor. The first communication device 450 means at least: firstly receive the first signaling and the second signaling; then receive the first signal and the second signal; the first signaling is used to determine the space occupied by the first signal; At least one of time domain resources or frequency domain resources, the second signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the second signal; The occupied time domain resources and the time domain resources occupied by the second signal overlap; the first signaling includes a first field, and the first field is used to indicate a first reference signal resource; the first signal The second signaling includes a second field, and the second field is used to indicate the second reference signal resource; the first reference signal resource is different from the second reference signal resource; the channel occupied by the first signal The demodulation reference signal and the target reference signal resource are quasi-co-located, and the demodulation reference signal and the target reference signal resource of the channel occupied by the second signal are quasi-co-located; the target reference signal resource is the one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to convert the first reference signal resource and the second reference signal The target reference signal resource is determined from the two reference signal resources, or the RNTI that scrambles the CRC carried in the first signaling and the RNTI that scrambles the CRC carried in the second signaling are used to retrieve the The target reference signal resource is determined from a reference signal resource and the second reference signal resource.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions, the program of computer-readable instructions, when executed by at least one processor, produces actions, the actions comprising: first receiving first signaling and second signaling; then receiving a first signal and a second signal; the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal , the second signaling is used to determine at least one of the time domain resources or frequency domain resources occupied by the second signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal The occupied time domain resources overlap; the first signaling includes a first field, and the first field is used to indicate a first reference signal resource; the second signaling includes a second field, and the second field is used to indicate the second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal of the channel occupied by the first signal and the target reference signal resource are quasi-common address, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located with the target reference signal resource; the target reference signal resource is the first reference signal resource or the second reference signal one of the resources; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource , or the RNTI that scrambles the CRC carried by the first signaling and the RNTI that scrambles the CRC carried by the second signaling are used to convert the first reference signal resource and the second reference signal resource The target reference signal resource is determined in .

As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with all used together with the at least one processor. The second communication device 410 means at least: receiving the first message; the sender of the first message includes the first communication device 450, the first communication device 450 maintains the first timer, and is used as the first condition set in the In response to any one of the conditions being satisfied, the first communication device 450 sends a first message; one condition in the first condition set is that the first timer expires; the first message is used to indicate at least A non-unicast identifier; the first communication device 450 is in the first RRC state when sending the first message; the first RRC state is an RRC connected state, or the first RRC state is RRC inactive state.

As an embodiment, the second communication device 410 includes: a memory for storing a program of computer-readable instructions, the program of computer-readable instructions generating actions when executed by at least one processor, and the actions include: receiving A first message; the sender of the first message includes a first communication device 450 that maintains a first timer, and in response to any condition in the first set of conditions being satisfied, the The first communication device 450 sends a first message; one condition in the first set of conditions is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first communication The device 450 is in a first RRC state when sending the first message; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with all used together with the at least one processor. The second communication device 410 means at least: sending a first signaling and a second signaling; sending a first signal and a second signal; the first signaling is used to determine the time domain occupied by the first signal at least one of resources or frequency domain resources, the second signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the second signal; The time domain resources and the time domain resources occupied by the second signal overlap; the first signaling includes a first field, and the first field is used to indicate the first reference signal resource; the second signal Let include a second field, the second field is used to indicate the second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation of the channel occupied by the first signal The reference signal and the target reference signal resource are quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal and the target reference signal resource are quasi-co-located; the target reference signal resource is the first one of a reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to obtain a reference signal from the first reference signal resource and the second reference The target reference signal resource is determined from the signal resources, or the RNTI that scrambles the CRC carried by the first signaling and the RNTI that scrambles the CRC carried by the second signaling are used to obtain the reference signal from the first reference signal. The target reference signal resource is determined from the signal resource and the second reference signal resource.

As an embodiment, the second communication device 410 includes: a memory for storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending first signaling and second signaling; sending a first signal and a second signal; the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, The second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; the time domain resource occupied by the first signal and the time domain resource occupied by the second signal The time domain resources of the two signals overlap; the first signaling includes a first domain, and the first domain is used to indicate the first reference signal resource; the second signaling includes a second domain, and the second domain is used to indicate the second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal of the channel occupied by the first signal and the target reference signal resource are quasi-co-located , and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located with the target reference signal resource; the target reference signal resource is the first reference signal resource or the second reference signal resource one of; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, Alternatively, the RNTI that scrambles the CRC carried by the first signaling and the RNTI that scrambles the CRC carried by the second signaling are used to extract information from the first reference signal resource and the second reference signal resource. The target reference signal resource is determined.

As an embodiment, the first communication device 450 corresponds to the first node in this application.

As an embodiment, the second communication device 410 corresponds to the second node in this application.

As an embodiment, the first communication device 450 is a UE.

As an embodiment, the first communication device 450 is a terminal.

As an embodiment, the second communication device 410 is a base station.

As an embodiment, the second communication device 410 is a UE.

As an embodiment, the second communication device 410 is a network device.

As an embodiment, the second communication device 410 is a serving cell.

As an embodiment, the second communication device 410 is a TRP.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used to maintain first timer.

As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 are used to maintain the first a timer.

As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 are used to transmit the first A message; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are used to receive the first information.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used for receiving First signaling and second signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 is used to send the first signaling and the second signaling.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used for receiving The first signal and the second signal; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are for sending the first signal and the second signal.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used for receiving target data; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to transmit target data .

As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 are used to transmit the uplink data; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 are used to receive the uplink.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used to monitor Second message; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to transmit the first Two news.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used according to Whether the second message is detected determines whether to enter the RRC idle state.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used to The first BWP switches to the second BWP; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 is used to determine the handover of the first communication device 450 from the first BWP to the second BWP.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used to monitor Third message; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to transmit the first Three messages.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used according to Whether the third message is detected determines whether the second BWP is camped.

Example 6

Embodiment 6 illustrates a flow chart of a first message, as shown in FIG. 6 . In FIG. 6 , the first node U1 and the second node N2 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

For the first node U1 , the first timer is maintained in step S10; in step S11, as a response that any condition in the first condition set is satisfied, a first message is sent.

For the second node N2 , the first message is received in step S20.

In Embodiment 6, one condition in the first condition set is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first node is sending the first A message is in the first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

As an embodiment, the receiving includes blind detection.

As one embodiment, the receiving includes demodulation.

As an embodiment, the receiving includes energy detection.

As one embodiment, the receiving includes coherent detection.

As an embodiment, the second node N2 does not know that the first node U1 sends the first message before receiving the first message.

Example 7

Embodiment 7 illustrates a flow chart of the first signaling and the second signaling, as shown in FIG. 7 . In FIG. 7 , the first node U3 and the second node N4 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

For the first node U3 , the first signaling and the second signaling are received in step S30; the first signal and the second signal are received in step S31.

For the second node N4 , the first signaling and the second signaling are sent in step S40; the first signal and the second signal are sent in step S41.

In Embodiment 7, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the second signaling. at least one of the time domain resources or frequency domain resources occupied by the signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap; the first signaling includes a first field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first The reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal and the target reference signal resource are quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal The modulation reference signal and the target reference signal resource are quasi-co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the CRC carried by the first signaling. The RNTI and the RNTI that scrambles the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the step S30 is located after the step S11 in the sixth embodiment.

As an embodiment, the step S40 is located after the step S20 in the sixth embodiment.

As an embodiment, the step S30 is located before the step S10 in the sixth embodiment.

As an embodiment, the step S40 is located before the step S20 in the sixth embodiment.

Example 8

Embodiment 8 illustrates a flow chart of target data, as shown in FIG. 8 . In FIG. 8 , the first node U5 and the second node N6 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

For the first node U5 , target data is received in step S50.

For the second node N6 , the target data is sent in step S60.

In Embodiment 8, the behavior of maintaining the first timer includes: starting or restarting the first timer in response to receiving the target data; the target data includes MAC SDUs from DTCH, DCCH, or CCCH.

As an embodiment, the step S50 is located before the step S10 in the sixth embodiment.

As an embodiment, the step S60 is located before the step S20 in the sixth embodiment.

As an embodiment, the target data does not include MAC SDUs from the MTCH.

As an embodiment, the target data does not include MAC SDUs from the MCCH.

As an embodiment, the target data does not include MAC SDUs from SC-MTCH.

As an embodiment, the target data does not include MAC SDUs from SC-MCCH.

As an embodiment, the target data does not include MAC SDUs from MTCH, MCCH, SC-MTCH and SC-MCCH.

As an embodiment, the target data is unicast data.

Example 9

Embodiment 9 illustrates a flowchart of uplink data, as shown in FIG. 9 . In FIG. 9 , the first node U7 and the second node N8 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

For the first node U7 , uplink data is sent in step S70.

For the second node N8 , uplink data is received in step S80.

In Embodiment 9, the behavior of maintaining the first timer includes: in response to sending the uplink data, starting or restarting the first timer; the uplink data includes the MAC SDU from the DTCH or the DCCH.

As an embodiment, the step S70 is located before the step S10 in the sixth embodiment.

As an embodiment, the step S80 is located before the step S20 in the sixth embodiment.

As an embodiment, the uplink data is unicast data.

Example 10

Embodiment 10 illustrates a flow chart of a second message, as shown in FIG. 10 . In FIG. 10, the first node U9 and the second node N12 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

For the first node U9 , in step S90, monitor the second message in the first time window; in step S91, determine whether to enter the RRC idle state according to whether the second message is detected.

For the second node N12 , a second message is sent in step S120.

In Embodiment 10, the expiration of the first timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window; the behavior is based on whether to detect Determining whether to enter the RRC idle state to the second message includes: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

As an embodiment, the step 90 is after the step S11 in the embodiment 6.

As an embodiment, the step 120 is after the step S20 in the embodiment 6.

As an embodiment, the step 91 includes detecting the second message and determining to enter the RRC idle state.

As an embodiment, the second message is a response to the first message.

Example 11

Embodiment 11 illustrates a flow chart of switching from the first BWP to the second BWP, as shown in FIG. 11 . In FIG. 11, the first node U13 and the second node N14 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application; wherein Steps S130 and S140 in block F0 are optional.

For the first node U13 , receive the fourth message in step S130; switch from the first BWP to the second BWP in step S131.

For the second node N14 , it is determined in step S140 that the first node U13 switches from the first BWP to the second BWP; in step S141, a fourth message is sent.

In Embodiment 11, the behavior of maintaining the first timer includes: starting or maintaining the first timer in response to the behavior switching from the first BWP to the second BWP.

As an embodiment, the step S131 is located before the step S10 in the sixth embodiment.

As an embodiment, the step S141 is located before the step S20 in the sixth embodiment.

As an embodiment, the non-unicast identification is applied to data transmission on the first BWP.

As an embodiment, the non-unicast identification is not applied to data transmission on the second BWP.

As an embodiment, the meaning of starting the first timer includes: starting the first timer to start timing.

As an embodiment, the meaning of maintaining the first timer includes: maintaining the first timer to continue timing.

As an embodiment, only the first BWP of both the first BWP and the second BWP includes frequency domain resources used for MBS (Multicast Broadcast Sevvice, multicast broadcast service).

As an embodiment, only the first BWP of both the first BWP and the second BWP includes frequency domain resources used for MBS.

As an embodiment, only the first BWP of both the first BWP and the second BWP includes frequency domain resources used for PTM.

As an embodiment, the second BWP is configured for unicast transmission.

As an embodiment, the first node switches from the first BWP to the second BWP when the second timer expires.

As an embodiment, physical layer dynamic signaling is used to instruct the first node to switch from the first BWP to the second BWP.

As an embodiment, the second BWP is configured through RRC signaling dedicated to the user equipment.

As an embodiment, the fourth message is carried by physical layer dynamic signaling.

As an embodiment, the fourth message comes from the RRC layer or the RLC layer of the first node U13.

Example 12

Embodiment 12 illustrates a flowchart of a third message, as shown in FIG. 12 . In FIG. 12, the first node U15 and the second node N16 communicate through a wireless link; it is particularly noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

For the first node U15 , in step S150, the third message is monitored in the first time window; in step S151, it is determined whether the second BWP is resident according to whether the third message is detected.

For the second node N16 , a third message is sent in step S160.

In Embodiment 12, the expiration of the first timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window; the behavior is based on whether to detect Determining whether to camp on the second BWP to the third message includes: not camping on the second BWP when the third message is detected, camping on the second BWP when the third message is not detected 2 BWP.

As an example, the step 150 is after the step S11 in the sixth embodiment.

As an example, the step 160 is after the step S20 in the sixth embodiment.

As an embodiment, the step 151 includes detecting the third message and determining not to camp the second BWP.

As an embodiment, the third message includes DCI.

As an embodiment, the third message includes RRC signaling.

As an embodiment, the third message includes a MAC CE.

As an embodiment, the physical layer channel carrying the third message includes PDCCH.

As an embodiment, the physical layer channel carrying the third message includes PDSCH.

As an embodiment, the third message includes the Bandwidth Part Indicator field in the DCI.

As an embodiment, the third message includes the BWP-id in TS 38.331.

As an embodiment, the third message includes BWP-downlink in TS 38.331.

As an embodiment, when the third message is detected, the first node U15 switches to the third BWP according to the instruction of the second message.

As a sub-embodiment of this embodiment, the third BWP is the first BWP.

As a sub-embodiment of this embodiment, the third BWP is a BWP other than the first BWP.

As a sub-embodiment of this embodiment, the third BWP is configured through RRC signaling other than RRC signaling dedicated to the user equipment.

As a sub-embodiment of this embodiment, the third BWP is used for non-unicast services.

As a sub-embodiment of this embodiment, the third BWP is associated with a BWP identifier for multicast multicast.

As an embodiment, the non-unicast traffic in this application is transmitted on a non-unicast channel.

As a sub-embodiment of this embodiment, the non-unicast channel includes MTCH.

As a sub-embodiment of this embodiment, the non-unicast channel includes MCCH.

As a sub-embodiment of this embodiment, the non-unicast channel includes a PDCCH that carries a CRC scrambled by the first identifier.

As a sub-embodiment of this embodiment, the non-unicast channel includes the PDSCH carried by the CRC and scrambled by the first identifier.

As an embodiment, the third message is a response to the first message.

Example 13

Embodiment 13 illustrates a schematic diagram of a first time window, as shown in FIG. 13 . In FIG. 13 , the sending time of the first message is used to determine the first time window; the first time window occupies a positive integer number of consecutive time slots greater than 1 in the time domain.

As an embodiment, the start time of sending the first message is used to determine the start time of the first time window.

As an embodiment, the deadline for sending the first message is used to determine the start time of the first time window.

As an embodiment, the duration of the first time window in the time domain is fixed.

As an embodiment, the duration of the first time window in the time domain is configured through high layer signaling.

Example 14

Embodiment 14 illustrates a schematic diagram of the first signal and the second signal, as shown in FIG. 14 . In FIG. 14, the first signal and the second signal are FDM.

As an embodiment, the first signal is generated by one TB (Transport Block, transport block).

As an embodiment, the second signal is generated by one TB.

As an embodiment, the CRC included in the first signal is scrambled by an RNTI other than the C-RNTI.

As an embodiment, the CRC included in the first signal is scrambled by G-RNTI.

As an embodiment, the CRC included in the first signal is scrambled by C-RNTI.

Example 15

Embodiment 15 illustrates a schematic diagram of a first-type reference signal resource set and a second-type reference signal resource set, as shown in FIG. 15 . In FIG. 15 , the first-type reference signal resource set includes K1 first-type reference signal resources, and the second-type reference signal resource set includes K2 second-type reference signal resources; the K1 first-type reference signal resources The class reference signal resources respectively correspond to K1 beams, and the K2 second class reference signal resources respectively correspond to K2 beams; the K1 is a positive integer greater than 1, and the K2 is a positive integer greater than 1.

As an embodiment, the target control resource set in this application is a CORESET.

As an embodiment, the first field included in the first signaling is used to indicate the first reference signal resource from the K1 first-type reference signal resources.

As an embodiment, any one of the K1 first-type reference signal resources includes at least one of CSI-RS resources or SSBs.

As an embodiment, any one of the K1 first-type reference signal resources is associated with one TCI-State.

As an embodiment, any one of the K1 first-type reference signal resources is associated with one TCI-StateID.

As an embodiment, any one of the K1 first-type reference signal resources is associated with at least one of a CSI-RS resource identifier or an SSB index.

As an embodiment, the second field included in the second signaling is used to indicate the second reference signal resource from the K2 reference signal resources of the second type.

As an embodiment, any one of the K2 second-type reference signal resources includes at least one of CSI-RS resources or SSBs.

As an embodiment, any one of the K2 reference signal resources of the second type is associated with one TCI-State.

As an embodiment, any second-type reference signal resource in the K2 second-type reference signal resources is associated with one TCI-StateID.

As an embodiment, any one of the K2 second-type reference signal resources is associated with at least one of a CSI-RS resource identifier or an SSB index.

Example 16

Embodiment 16 illustrates a schematic diagram of a first control resource set and a second control resource set, as shown in FIG. 16 . In FIG. 16 , the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set overlap.

As an embodiment, a search space set associated with the first control resource set is associated with the first identifier, and a search space set associated with the second control resource set is not associated with the first identifier; The demodulation reference signals of the control signaling in the second control resource set are quasi-co-located with the demodulation reference signals of the control signaling in the first control resource set.

As an embodiment, the first control resource set is a CORESET.

As an embodiment, the second control resource set is a CORESET.

As an embodiment, the first identifier is a SearchSpaceID.

As an embodiment, the first identification is associated with non-unicast service transmission.

As an embodiment, the first identifier is a BWP-id of a BWP that supports non-unicast service transmission.

Example 17

Embodiment 17 illustrates a structural block diagram of a first node, as shown in FIG. 17 . In FIG. 17 , the first node 1700 includes a first transceiver 1701 and a second transceiver 1702 .

The first transceiver 1701 maintains the first timer;

The second transceiver 1702 sends a first message as a response that any condition in the first condition set is satisfied;

In Embodiment 17, one condition in the first condition set is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first node is sending the first A message is in the first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

As an embodiment, the first transceiver 1701 receives target data; the behavior of maintaining the first timer includes: in response to receiving the target data, starting or restarting the first timer; the target data Includes MAC SDUs from DTCH, DCCH or CCCH.

As an embodiment, the first transceiver 1701 sends uplink data; the behavior of maintaining the first timer includes: in response to sending the uplink data, starting or restarting the first timer; the target data Including MAC SDUs from DTCH or DCCH.

As an embodiment, the second transceiver 1702 monitors the second message in the first time window, and the second transceiver 1702 determines whether to enter the RRC idle state according to whether the second message is detected; the first The expiration of a timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window; the behavior is determined based on whether the second message is detected Entering the RRC idle state includes: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

As an embodiment, the first transceiver 1701 switches from the first BWP to the second BWP; the act of maintaining the first timer includes: as the act of switching from the first BWP to the second BWP In response, the first timer is started or maintained.

As an embodiment, the second transceiver 1702 monitors a third message in a first time window, and the second transceiver 1702 determines whether to camp on the second BWP according to whether the third message is detected; Expiration of the first timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window; the behavior is based on whether the third The message determining whether to camp on the second BWP includes not camping on the second BWP when the third message is detected, and camping on the second BWP when the third message is not detected.

As an embodiment, the first transceiver 1701 includes the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, and the transmit processor in Embodiment 4 468, at least the first 6 of the controller/processor 459.

As an embodiment, the second transceiver 1702 includes the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, and the transmit processor in Embodiment 4 468, at least the first 6 of the controller/processor 459.

Example 18

Embodiment 18 illustrates a structural block diagram of a first node, as shown in FIG. 18 . In FIG. 18, the first node 1800 includes a first transceiver 1801 and a second transceiver 1802.

the first transceiver 1801, receiving the first signaling and the second signaling;

a second transceiver 1802, receiving the first signal and the second signal;

In Embodiment 18, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the second signaling. at least one of the time domain resources or frequency domain resources occupied by the signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap; the first signaling includes a first field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first The reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal and the target reference signal resource are quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal The modulation reference signal and the target reference signal resource are quasi-co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the CRC carried by the first signaling. The RNTI and the RNTI that scrambles the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the frequency domain resource occupied by the first signal is a first set of subcarriers, the frequency domain resource occupied by the second signal is a second set of subcarriers, the first set of subcarriers and the set of all subcarriers The second subcarrier set belongs to the target BWP, and the first subcarrier set and the second subcarrier set are orthogonal in the frequency domain.

As a sub-embodiment of this embodiment, the first set of sub-carriers includes a positive integer number of sub-carriers greater than 1.

As a sub-embodiment of this embodiment, the second set of sub-carriers includes a positive integer number of sub-carriers greater than 1.

As an embodiment, both the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a target control resource set, and the target control resource set is associated with the first type of reference a signal resource set and a second type of reference signal resource set; the first field included in the first signaling is used to indicate the first reference signal resource from the first type of reference signal resource set; the The second field included in the second signaling is used to indicate the second reference signal resource from the second type of reference signal resource set.

As an embodiment, the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively, and the first control resource The frequency domain resources occupied by the set and the frequency domain resources occupied by the second control resource set overlap; the search space set associated with the first control resource set is associated with the first identifier, and the first control resource set is associated with the first identifier. The search space set associated with the second control resource set is not associated with the first identifier; the demodulation reference signal of the control signaling in the second control resource set is the same as the control signaling in the first control resource set. The demodulation reference signal is quasi-co-located.

As a sub-embodiment of this embodiment, the first identifier is an integer.

As a sub-embodiment of this embodiment, the first identifier is a CORESET Pool ID.

As an embodiment, the first transceiver 1801 includes the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, and the transmit processor in Embodiment 4 468, at least the first 6 of the controller/processor 459.

As an embodiment, the second transceiver 1802 includes the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, and the transmit processor in Embodiment 4 468, at least the first 6 of the controller/processor 459.

Example 19

Embodiment 19 illustrates a structural block diagram of a second node, as shown in FIG. 19 . In FIG. 19 , the second node 1900 includes a third transceiver 1901 .

The third transceiver 1901, receives the first message;

In Embodiment 19, the sender of the first message includes a first node, the first node maintains a first timer, and as a response that any condition in the first condition set is satisfied, the first node sending a first message; one condition in the first set of conditions is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; the first node is sending the first A message is in the first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.

As an embodiment, the third transceiver 1901 transmits target data; the first node receives the target data; the behavior of maintaining a first timer includes: in response to receiving the target data, the first node The node starts or restarts the first timer; the target data includes MAC SDUs from DTCH, DCCH or CCCH.

As an embodiment, the third transceiver 1901 receives uplink data; the first node sends the uplink data; the behavior of maintaining the first timer includes: in response to sending the uplink data, the first node The node starts or restarts the first timer; the uplink data includes the MAC SDU from the DTCH or DCCH.

As an embodiment, the third transceiver 1901 sends a second message in a first time window; the first node determines whether to enter the RRC idle state according to whether the second message is detected; the first timer is used to trigger the first node to send the first message; the sending time of the first message is used to determine the first time window; the behavior is determined according to whether the second message is detected Whether to enter the RRC idle state includes: not entering the RRC idle state when the first node detects the second message, and entering the RRC idle state when the first node does not detect the second message .

As an embodiment, the third transceiver 1901 determines that the first node switches from the first BWP to the second BWP; the act of maintaining the first timer includes: switching from the first BWP to the act as the act In response to the second BWP, the first node starts or maintains the first timer.

As an embodiment, the third transceiver 1901 sends a third message in a first time window; the first node determines whether to camp on the second BWP according to whether the third message is detected; the first node Expiration of a timer is used to trigger the first node to send the first message; the sending time of the first message is used to determine the first time window; the behavior is based on whether the first message is detected The three-message determination of whether to camp on the second BWP includes the first node not camping on the second BWP when the third message is detected, the first node when the third message is not detected A node resides in the second BWP.

As an embodiment, the third transceiver 1901 includes the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, and the receive processor in Embodiment 4 470. At least the first 6 of the controller/processor 475.

Example 20

Embodiment 20 illustrates a structural block diagram of a second node, as shown in FIG. 20 . In FIG. 20 , the second node 2000 includes a third transceiver 2001 .

The third transceiver 2001, sending first signaling and second signaling; and sending first and second signals;

In Embodiment 20, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the second signaling. at least one of the time domain resources or frequency domain resources occupied by the signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap; the first signaling includes a first field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first The reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal and the target reference signal resource are quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located, and the demodulation reference signal of the channel occupied by the second signal The modulation reference signal and the target reference signal resource are quasi-co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the CRC carried by the first signaling. The RNTI and the RNTI scrambled with the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the third transceiver 2001 includes the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, and the receive processor in Embodiment 4 470. At least the first 6 of the controller/processor 475.

As an embodiment, the fourth transceiver 2002 includes the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, and the receive processor in Embodiment 4 470. At least the first 6 of the controller/processor 475.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above-mentioned embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules, and the present application is not limited to any specific form of the combination of software and hardware. The first node in this application includes but is not limited to mobile phones, tablet computers, notebooks, network cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, vehicles, vehicles, RSUs, aircraft, airplanes, no Man-machine, remote control aircraft and other wireless communication equipment. The second node in this application includes but is not limited to macro cell base station, micro cell base station, small cell base station, home base station, relay base station, eNB, gNB, transmission and reception node TRP, GNSS, relay satellite, satellite base station, air base station , RSU, UAV, test equipment, such as transceiver devices or signaling testers that simulate some functions of base stations, and other wireless communication equipment.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A first node for wireless communication, characterized in that it includes:

a first transceiver, maintaining a first timer;

The second transceiver, in response to any condition in the first condition set being satisfied, transmits the first message;

One condition in the first condition set is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; when the first node sends the first message is in a first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.
A first node for wireless communication, characterized in that it includes:

a first transceiver, receiving the first signaling and the second signaling;

a second transceiver that receives the first signal and the second signal;

Wherein, the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, and the second signaling is used to determine the occupied by the second signal at least one of the time-domain resources or frequency-domain resources; the time-domain resources occupied by the first signal and the time-domain resources occupied by the second signal overlap; field, the first field is used to indicate the first reference signal resource; the second signaling includes a second field, the second field is used to indicate the second reference signal resource; the first reference signal resource is different from the second reference signal resource; the demodulation reference signal of the channel occupied by the first signal is quasi-co-located with the target reference signal resource, and the demodulation reference signal of the channel occupied by the second signal is quasi-co-located is quasi-co-located with the target reference signal resource; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the The priority of the second signal is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or to scramble the RNTI and the CRC carried by the first signaling. The RNTI scrambling the CRC carried by the second signaling is used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.
The first node according to claim 1 or 2, wherein the first transceiver receives target data; the behavior of maintaining the first timer comprises: in response to receiving the target data, starting or restarting the first timer; the target data includes MAC SDUs from DTCH, DCCH or CCCH.
3. The first node according to any one of claims 1 to 3, wherein the second transceiver monitors the second message in a first time window, and the second transceiver detects the second message according to whether The second message determines whether to enter the RRC idle state; the expiration of the first timer is used to trigger the sending of the first message; the sending time of the first message is used to determine the first time window ;Determining whether to enter the RRC idle state according to whether the second message is detected includes: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected Describe the RRC idle state.
The method in the first node according to claim 1 or 2, wherein the first transceiver is switched from the first BWP to the second BWP; the act of maintaining the first timer comprises: as the act The first timer is started or maintained in response to switching from the first BWP to the second BWP.
6. The first node of claim 5, wherein the second transceiver monitors the third message in the first time window, and the second transceiver determines whether to detect the third message according to whether the third message is detected. camping on the second BWP; expiration of the first timer is used to trigger sending of the first message; sending time of the first message is used to determine the first time window; the behavior Determining whether to camp on the second BWP according to whether the third message is detected includes: not camping on the second BWP when the third message is detected, camping when the third message is not detected the second BWP.
The first node according to any one of claims 2 to 6, wherein a frequency domain resource occupied by the first signal is a first subcarrier set, and a frequency domain resource occupied by the second signal The resource is a second set of subcarriers, the first set of subcarriers and the second set of subcarriers belong to the target BWP, and the set of first subcarriers and the second set of subcarriers are orthogonal in the frequency domain.
The first node according to any one of claims 2 to 7, wherein both the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to the target a control resource set, the target control resource set is associated with a first type of reference signal resource set and a second type of reference signal resource set; the first field included in the first signaling is used to convert the The first reference signal resource is indicated in one type of reference signal resource set; the second field included in the second signaling is used to indicate the second reference signal from the second type of reference signal resource set signal resource.
The method in the first node according to any one of claims 2 to 7, wherein the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to the first control resource set and the second control resource set respectively, and the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set overlap; the first control resource set The search space set associated with the resource set is associated with the first identifier, and the search space set associated with the second control resource set is not associated with the first identifier; the control in the second control resource set The demodulation reference signal of the signaling is quasi-co-located with the demodulation reference signal of the control signaling in the first control resource set.
A second node for use in wireless communication, comprising:

a third transceiver, receiving the first message;

The sender of the first message includes a first node, the first node maintains the first timer, and as a response that any condition in the first condition set is satisfied, the first node sends the first message; one condition in the first set of conditions is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; when the first node sends the first message is in a first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.
A method for use in a first node in wireless communication, comprising:

maintain the first timer;

Send the first message as a response that any condition in the first condition set is satisfied;

One condition in the first condition set is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; when the first node sends the first message is in a first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.
A method for use in a second node in wireless communication, comprising:

receive the first message;

The sender of the first message includes a first node, the first node maintains the first timer, and as a response that any condition in the first condition set is satisfied, the first node sends the first message; one condition in the first set of conditions is that the first timer expires; the first message is used to indicate at least one non-unicast identifier; when the first node sends the first message is in a first RRC state; the first RRC state is an RRC connected state, or the first RRC state is an RRC inactive state.